Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component
Reexamination Certificate
2005-03-28
2008-11-18
Wood, Elizabeth D (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
And additional al or si containing component
C502S063000, C502S068000, C502S079000, C502S407000, C502S411000, C502S414000
Reexamination Certificate
active
07452840
ABSTRACT:
The present invention relates to agglomerated zeolitic adsorbents containing zeolite X and an inert binder, the inert binder containing at least 80% by weight of clay which has undergone zeolitization by the action of an alkaline solution, the zeolite X having with an Si/Al ratio such that 1.15<Si/Al≦1.5, at least 90% of the exchangeable cationic sites of the zeolite X of which are occupied either by barium ions alone or by barium ions and potassium ions whose Dubinin volume is greater than or equal to 0.240 cm3/g. They are obtained by agglomerating zeolite powder with a binder, followed by the zeolitization of the binder, the exchange of the ions of the zeolite by barium ions (and potassium ions) and the activation of the adsorbents thus exchanged. These adsorbents are particularly suited to the adsorption of the para-xylene present in C8aromatic hydrocarbon fractions in the liquid phase in processes of simulated moving bed type but also to the separation of sugars, polyhydric alcohols, cresols or substituted toluene isomers.
REFERENCES:
patent: 2985589 (1961-05-01), Broughton et al.
patent: 3119660 (1964-01-01), Howell et al.
patent: 3558730 (1971-01-01), Neuzil
patent: 3558732 (1971-01-01), Neuzil
patent: 3626020 (1971-12-01), Neuzil
patent: 3663638 (1972-05-01), Neuzil
patent: 3878127 (1975-04-01), Rosback
patent: 3960774 (1976-06-01), Rosback
patent: 4402832 (1983-09-01), Gerhold
patent: 4498991 (1985-02-01), Oroskar
patent: 4633018 (1986-12-01), Zinnen
patent: 4642397 (1987-02-01), Zinnen et al.
patent: 4642406 (1987-02-01), Schmidt
patent: 4818508 (1989-04-01), Flank et al.
patent: 4940548 (1990-07-01), Zinnen
patent: 5149887 (1992-09-01), Zinnen
patent: 5284992 (1994-02-01), Hotier et al.
patent: 5629467 (1997-05-01), Hotier et al.
patent: 5849981 (1998-12-01), Kulprathipanja
patent: 5919287 (1999-07-01), Moreau
patent: 6264881 (2001-07-01), Plee
patent: 6410815 (2002-06-01), Plee et al.
patent: 6616732 (2003-09-01), Grandmougin et al.
patent: 6652626 (2003-11-01), Plee
patent: 0 115 068 (1984-08-01), None
patent: 0 115 631 (1984-08-01), None
patent: 0 137 063 (1985-04-01), None
patent: 0 154 855 (1985-09-01), None
patent: 0 531 191 (1993-03-01), None
patent: 0 893 157 (1999-01-01), None
patent: 2 776 475 (1999-01-01), None
patent: 2 767 524 (1999-02-01), None
patent: 5-163015 (1993-06-01), None
Methivier Alain
Plee Dominique
Institut Francais du Pe'trole
Smith , Gambrell & Russell, LLP
Wood Elizabeth D
LandOfFree
Agglomerated zeolitic adsorbents, their process of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Agglomerated zeolitic adsorbents, their process of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Agglomerated zeolitic adsorbents, their process of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4045769